function value = getHeaderFieldPhys(header,field)

% Will look in the first col of a cell array for the string listed in 
% filed and output the value in col 2 of the same row..
value=[];
flag = 0;
for i = 1:length(header)
	if strcmp(field, header{i,1})
		value = header{i,2};
		flag=1;
		break	
	end
end
